World Of Instrumentation

videos related to Electrical courses

2022-02-20T14:00:00.006+05:30

1. Mostly electrical but have instrumentation subject https://www.youtube.com/channel/UCuLlqIFbjmbSIc53UJWIokg/videos

Videos related to control valve

2022-02-19T17:10:00.015+05:30

1.CALIBERATION - Fisher DVC 6200 with HART

2.INSTALLATION - Fisher FIELDVUE DVC6200 on a 657 or a 667 Size 40i Actuator

3. CALIBERATION - DVC 6010 on Caldera Engineering Control Valve

4. OVERVIEW/TROUBLESHOOTING of DVC 6010

5. INSTALLATION - DVC 6010 on a Fisher 657 actuator installation and bench set

6.TROUBLESHOOTING - Edit valve hunting by Stabilize /Optimize DVC6200 https://www.youtube.com/watch?v=ii8bnC-iFJY 7. CALIBERATION AND CONFIGURATION FOR DVC6000

8. connecting VALVELINK SOFTWARE OSCILLOSCOPE TO DCV6000

9. Valve water hammer protection protection DVC6200

videos related to Fire & Gas Instrumentation

2022-02-19T15:36:00.026+05:30

2. Drager Polytron 5000 H2S Gas Detector

3. Drager Polytron 5000 H2S Gas Detector

video related to Industrial communication

2022-02-19T15:33:00.002+05:30

1. Simulation and troubleshooting on Profinet communication

videos related to pressure calibration

2022-02-19T15:22:00.010+05:30

1. How Zero trim on Pressure Transmitter Rosemount by field communication 475

2. Pressure Switch Calibration

Some Video related to tools

2022-02-19T10:29:00.001+05:30

1. Druck 610 and Gas Bubbler Calibrator https://www.youtube.com/watch?v=RyJNUu4uTQQ

Online shops for instrument & Control

2022-02-18T19:07:00.006+05:30

1. https://www.orbit-surplus.com/

Training Videos (short courses) for instrumentation & controls

2022-02-18T13:27:00.014+05:30

1. Instrumentation controls videos https://www.youtube.com/c/InstrumentationControl/videos 2.Industrail Automation and Electrical https://www.youtube.com/channel/UC8PEL2lXMplsyDHHlSFJZRg/videos 3.Instrumentation - Fire and Gas detectors https://www.youtube.com/c/Lesman/videos

SCADA SYSTEMS used in the industry 4 supervisory controls

2010-05-31T12:51:00.001+05:30

We know that PLC and DCS in the industry levels controls all the plants functionary, ie, from the manufacturing to the maintenance. But how does SCADA comes into the Controls Of INDUSTRY

IDEA ABOUT SCADA

SCADA stands for "supervisory control and data acquisition"

The operator working at basic control lvl in process industry looks for process parameters like temp,pressure and flow in real time through HMIs(Human machine Interace ) and maybe RTUs(Remote Terminal Units). He can manipulate certain parameters  as per process requirements. On the other end, the process engineer looks into his controller screen (for the same process ) that maybe at Control server and he control some parameters which the operator @ field cannot control. The controlling by the process engineer is SUPERVISORY.
   Now, the Lead Instrumentation Engineer has a different control over the process. He can change over process and also add or remove some process components.
   At the managerial level, the manager of the plant may change the process on certain feedbacks he gets from the market, for example, he may change some parameters that is in his controls like quantity,outlook of the product that is being manufactured .
   So from what we saw, SCADA gives everyone some control over the plant and which is unique as the controller itself. This kind of contrrol is not built in with PLC or DCSs; but comes with some controllers like PAC ((pragrammable automation controllers ). With using SCADA, this type of control can be enabled on PLCs and DCSs.

Some photos to show scada ,

This screenshot shows how scada come into cement batching process.

This screenshot show SCADA for Well controls

Progammable Automation Controllers (PAC)

2010-05-27T11:15:00.003+05:30

Programmable Automation Controllers

This something I ve come across today; I ve had learnt how it works during my college days but I had underestimated it when comparing to Programmable Logic Controllers(PLC). The technolgy in PAC differs a lot from what I came to know. PAC is single device that will control,communicate and process various logics to the field devices in a plant. PAC is something like industrail PC ,where as PLC needs a PC and other communication devices to control various field devices.Other thing, i came to know it supports various industrial communication systems.

So, what I feel, when one PAC is able to handle what several PLCs try to do, its fast gona replace them.
More info about PAC can be found out here @ NI website
https://admin.na3.acrobat.com/_a56821929/p16521534/?launcher=false&fcsContent=true&pbMode=normal

National Instruments are leading technolgy towards PAC through its programs like LABVIEW.
U can learn about labview @ here

http://www.ni.com/academic/lv_training/how_learn_lv.htm

Videos on oil & gas

2010-05-25T14:50:00.003+05:30

3D visualizations are conducted and how the data helps to pinpoint underground oil and gas deposits.

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A video on the history on oil refinery and its present situation

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The video is on how oil & gas drilling process takes place

Programming of PLC

2010-05-20T19:32:00.001+05:30

Binary Control Logic

In some application of control systems, the variables are binary — they can be either of two possible values, 1 or 0. These values can be interpreted to mean ON or OFF, true of false, object present or not present, high voltage value or low voltage value, and so on.

Followings are some binary input and output devices....

Example of plc programming :-

PLC - How it changed world of industry

2010-05-20T15:54:00.006+05:30

What is PLC ??

According to the National Electrical Manufacturers Association (NEMA) a programmable logic controller (PLC) is defined as :

A digitally operating electronic apparatus which uses a programmable memory for the
internal storage of instructions for implementing specific functions such as logic,
sequencing, timing, counting, and arithmetic to control, through digital or analog
input/output modules, various types of machines or processes.

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Why the industry preferred plc over classic relays ?
Its because of following advantages of plc ::

Programming the PLC is easier than wiring the relay control panel.

The PLC can be reprogrammed. Conventional controls must be rewired

PLCs take less floor space then relay control panels.

Maintenance of the PLC is easier, and reliability is greater.

The PLC can be connected to the plant computer systems more easily than relays can.

Components of plcs is shown in above diagram.

Steel in making

2010-05-20T13:19:00.000+05:30

Pressure - how its related to industry

2010-05-20T13:08:00.000+05:30

PRESSURE

To accurately size control valves, we must fully understand the various pressure terms used in the instrument

world. The pressure measurement identifications most frequently encountered in valve applications are: absolute

pressure, gauge pressure, vacuum, and differential pressure.

DEFINITIONS:

a) ABSOLUTE PRESSURE -expressed "pounds per square inch absolute," or psia.

b) GAUGE PRESSURE -expressed "pounds per square inch gauge," or psig.

c) VACUUM -is a special case of gauge pressure; i.e., vacuum is negative gauge pressure or any pressure

less than atmospheric pressure.

d) DIFFERENTIAL PRESSURE-is the difference between two pressure points in a system and is

expressed as ∆P .

Here are some basic relationships between gauge pressure, absolute pressure and vacuum.

a) absolute pressure = atmospheric pressure + gauge pressure.

b) absolute pressure = atmospheric pressure - vacuum.

c) gauge pressure= -vacuum.

EXAMPLES:

1. Convert 100 psig to absolute

a) at sea level 7 . 114 7 . 14 100 = + = abs P

b) at 4,000 feet 7 . 112 7 . 12 100 = + = abs P

2. Convert 20.36 in Hg Vacuum to psia

a) P in Hg

gauge =

−

= = 2 036

20 36

2 036 10 .

psig

Pgauge = -vacuum = -10 psig vacuum

b) Pabs = Patmos – vacuum

Pabs = 14.7 – 10 psig = 4.7 psia at sea level

Pabs = 12.7 – 10 psig = 2.7 psia at 4,000 feet

3. Convert 100 psia to psig

a) Pabs = Patmos + Pgauge

b) Pgauge = Pabs – Patmos

Pgauge = 100 psi – 14.7 psia = 85.3 psig at sea level

Book on Safe Maintenance Guide for Robotic Workstations

2010-05-20T12:14:00.000+05:30

This book contains procedure and safety rules in shutting down plant machinery and its robotics.
Also good info on Emergency Shutdown Devices (ESD)

Oscilloscope - Its uses

2010-05-20T09:08:00.000+05:30

The oscilloscope is a instrument which is a graphical voltmeter; in which you can vary parameters to study waveforms such as amplitude and frequency of waves.

It has got two probes one is test probe and other probe is for ground.
Ground probe of scope is actually connected to the metal of oscilloscope,which is connected to earth'safety ground of the th power system.
So, NEVER measure directly a.c voltages with oscilloscope which is having a GROUND PROBE
There is a way to measure ac voltage on scope , use two channels in scope at the same time and removing ground probe from both the channels.Then, ADD signals of the both channels and for the 2nd channel , make the signal INVERT. This way, you can measure any voltage without bothering about ground. Below is the video which gives more info on it:

More info and uses can be found out at www.absoluteastronomy.com/topics/Oscilloscope

Various instrumentation Jobs activities

2010-05-16T20:00:00.002+05:30

I'llbe updating this section as soon as i have enuf info about the jobs

Distributed Control System (DCS) Engineer

DCS is advance control system that utilize various PLCs in order for control and co-ordination of various processes that go on in single plant. So, DCS engineers are prominently working oil & gas refineries, various industrial plants and also with various manufacturers.

They work include::

Practical knowledge on distributed control system (DCS)
Operation of Emergency Shutdown Devices (ESD)

troubleshooting control systems

2. Instrument Designer-Electrical

Must know instrumentation design drawings such as loop diagrams (ILDs), piping and instrument diagrams (PIDs)
Working with Microstation and IRAS/B software developing design drawings
Also draw wiring diagrams, instrument specification sheets
Must know basic instrumentation devices such as flow elements, pressure, temperature, and level measuring devices and transmitters
Basic knowledge of industry codes and standards such as ISA, NEC, and IEC

Video on jobs & careers available in field the field of oil & gas

http://link.brightcove.com/services/player/bcpid1386356682?bctid=1381421783

Bhopal tragedy as Safety measures were no more

2010-05-16T19:12:00.000+05:30

The Bhopal disaster was an industrial catastrophe that took place at a pesticide plant owned and operated by Union Carbide (UCIL) inBhopal, Madhya Pradesh, India. Around midnight on the intervening night of December 2–3, 1984, the plant released methyl isocyanate (MIC) gas and other toxins, resulting in the exposure of over 500,000 people. Estimates vary on the death toll. The official immediate death toll was 2,259 and the government of Madhya Pradesh has confirmed a total of 3,787 deaths related to the gas release.^[1] Other government agencies estimate 15,000 deaths.^[2] Others estimate that 8,000 died within the first weeks and that another 8,000 have since died from gas-related diseases.^[3]^[4]
^{Factors leading to the gas leak include:
The use of hazardous chemicals (MIC) instead of less dangerous ones
Storing these chemicals in large tanks instead of over 200 steel drums.
Possible corroding material in pipelines
Poor maintenance after the plant ceased production in the early 1980s
Failure of several safety systems (due to poor maintenance and regulations).
Safety systems being switched off to save money—including the MIC tank refrigeration system which alone would have prevented the disaster.}

Jobs In hyderabad 2

2010-05-16T13:36:00.001+05:30

Jobs In hyderabad

2010-05-16T13:08:00.001+05:30

India's oil Field Exploration Status

2010-05-16T12:10:00.001+05:30

Despite an exploration history of over 100 years, India remains vastly

unexplored with only 20% of its acreage being explored adequately.

Isolation transformer

2010-05-16T10:42:00.000+05:30

Isolation transformer isolates power out from the power line

Aside from the ability to easily convert between different levels of voltage and current in AC and DC circuits, transformers also provide an extremely useful feature called isolation, which is the ability to couple one circuit to another without the use of direct wire connections.
There are applications where electrical isolation is needed between two AC circuit without any transformation of voltage or current levels. In these instances, transformers called isolation transformershaving 1:1 transformation ratios are used.

Fuse and circuit rating for given wire gauge

2010-05-14T22:09:00.001+05:30

==== CODES===

2010-05-14T20:51:00.000+05:30

There various codes that defines issues related to safety and better way of doing things in the field of electronics.
These codes are followed by various industries while designing to implementation of any electronics. Many of the scientific organisation and committees develop them for each country or region. So,if your in India, so codes pertaining to India will be better while designing or implementing.
Im this post, you will find some info about various codes. So, this post will be updated for awhile.

1.)) NEC CODES::